Calculating Torque for Sphere in Countersink: Simple Guide"

  • Thread starter Thread starter headhole[ita]
  • Start date Start date
  • Tags Tags
    Sphere
AI Thread Summary
To calculate the torque required for a sphere to exit a countersink, the key factors include the force applied by the spring, the dimensions of the sphere, and the geometry of the countersink. The spring exerts a force of 76.26N at a compression of 11.6mm, while the sphere has a fixed diameter of 6.0mm and the countersink measures 0.5mm with a 45° angle. Understanding the interaction between these components is crucial for determining the torque in Newton-meters (Nm) needed to prevent motor issues in a coffee milling appliance. Additional clarification or visual aids may be necessary for precise calculations. The discussion emphasizes the importance of these variables in ensuring effective operation.
headhole[ita]
Messages
1
Reaction score
0
I need help (in a very simple way) due to calculate the torque needed to let a sphere coming out of a countersink.
I'll try to explain better my application with the components involved:
1. a spring that apply a Force F=76.26N (nominal length 14mm) at 11.6mm of compression: these values could be variable;
2. a ball bearing sphere 6.0mm diameter: this is a fixed value;
3. a countersink of 0.5mm x 45° in a 5.0mm hole (the height and the angle could be variable);
The spring push the sphere inside the countersink hole.
The countersink holes are cnc in a coffee milling appliance and I need to know the torque in Nm to let the sphere coming out of the countersink (this is used to avoid problems on the driving motor).
If needed I can try explain better with a drawing.
 
Engineering news on Phys.org
How did you find PF?: Via Google search Hi, I have a vessel I 3D printed to investigate single bubble rise. The vessel has a 4 mm gap separated by acrylic panels. This is essentially my viewing chamber where I can record the bubble motion. The vessel is open to atmosphere. The bubble generation mechanism is composed of a syringe pump and glass capillary tube (Internal Diameter of 0.45 mm). I connect a 1/4” air line hose from the syringe to the capillary The bubble is formed at the tip...
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'
Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
I'd like to create a thread with links to 3-D Printer resources, including printers and software package suggestions. My motivations are selfish, as I have a 3-D printed project that I'm working on, and I'd like to buy a simple printer and use low cost software to make the first prototype. There are some previous threads about 3-D printing like this: https://www.physicsforums.com/threads/are-3d-printers-easy-to-use-yet.917489/ but none that address the overall topic (unless I've missed...
Back
Top